An information processing device capable of communicating with a plurality of servers installed within a facility and method are provided. A storage unit stores server information including an installation position and a temperature of each of the servers within the facility. A detection unit detects a group of not-yet-powered-on servers from the plurality of servers. A calculation unit calculates an index value indicating a correlation of heat generation amounts between the not-yet-powered-on server and powered-on servers, based on the server information stored in the storage unit for each detected not-yet-powered-on server. A decision unit decides a server which becomes a power-on target, from the group of the not-yet-powered-on servers, based on the calculated index value of each not-yet-powered-on server. An output unit outputs a decision result which has been decided.
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